1773
Tea Act. By reducing the tax on imported British tea, this act gave British merchants an unfair advantage in selling their tea in America. American colonists condemned the act, and many planned to boycott tea.
Boston Tea Party. When British tea ships arrived in Boston harbor, many citizens wanted the tea sent back to England without the payment of any taxes. The royal governor insisted on payment of all taxes. On December 16, a group of men disguised as Indians boarded the ships and dumped all the tea in the harbor.

1774
Coercive Acts. In response to the Boston Tea Party, Parliament passed several acts to punish Massachusetts. The Boston Port Bill banned the loading or unloading of any ships in Boston harbor. The Administration of Justice Act offered protection to royal officials in Massachusetts, allowing them to transfer to England all court cases against them involving riot suppression or revenue collection. The Massachusetts Government Act put the election of most government officials under the control of the Crown, essentially eliminating the Massachusetts charter of government.
Quartering Act. Parliament broadened its previous Quartering Act (1765). British troops could now be quartered in any occupied dwelling.
The Colonies Organize Protest. To protest Britain's actions, Massachusetts suggested a return to nonimportation, but several states preferred a congress of all the colonies to discuss united resistance. The colonies soon named delegates to a congress -- the First Continental Congress -- to meet in Philadelphia on September 5.
The First Continental Congress. Twelve of the thirteen colonies sent a total of fifty-six delegates to the First Continental Congress. Only Georgia was not represented. One accomplishment of the Congress was the Association of 1774, which urged all colonists to avoid using British goods, and to form committees to enforce this ban.
New England Prepares for War. British troops began to fortify Boston, and seized ammunition belonging to the colony of Massachusetts. Thousands of American militiamen were ready to resist, but no fighting occurred. Massachusetts created a Provincial Congress, and a special Committee of Safety to decide when the militia should be called into action. Special groups of militia, known as Minute Men, were organized to be ready for instant action.

1775
New England Restraining Act. Parliament passed an act banning trade between the New England colonies and any other country besides Great Britain.
New England Resists. British troops continued to attempt to seize colonial ammunition, but were turned back in Massachusetts, without any violence. Royal authorities decided that force should be used to enforce recent acts of Parliament; war seemed unavoidable.
Lexington and Concord. British troops planned to destroy American ammunition at Concord. When the Boston Committee of Safety learned of this plan, it sent Paul Revere and William Dawes to alert the countryside and gather the Minute Men. On April 19, Minute Men and British troops met at Lexington, where a shot from a stray British gun lead to more British firing. The Americans only fired a few shots; several Americans were killed. The British marched on to Concord and destroyed some ammunition, but soon found the countryside swarming with militia. At the end of the day, many were dead on both sides.
The Second Continental Congress. The Second Continental Congress convened in Philadelphia on May 10. John Hancock was elected president of Congress.
George Washington is named commander-in-chief. On June 10, John Adams proposed that Congress consider the forces in Boston a Continental army, and suggested the need for a general. He recommended George Washington for the position. Congress began to raise men from other colonies to join the army in New England, and named a committee to draft military rules. On June 15, Washington was nominated to lead the army; he accepted the next day. To pay for the army, Congress issued bills of credit, and the twelve colonies represented in the Congress promised to share in repaying the bills.
Bunker Hill. On June 12, British General Gage put martial law in effect, and stated that any person helping the Americans would be considered a traitor and rebel. When Americans began to fortify a hill against British forces, British ships in the harbor discovered the activity and opened fire. British troops -- 2,400 in number -- arrived shortly after. Although the Americans -- 1,000 in number -- resisted several attacks, eventually they lost the fortification.
Olive Branch Petition. Congress issued a petition declaring its loyalty to the king, George III, and stating its hope that he would help arrange a reconciliation and prevent further hostilities against the colonies. Four months later, King George III rejected the petition and declared the colonies in rebellion.
Congress Treats with the Indians. Acting as an independent government, Congress appointed commissioners to create peace treaties with the Indians.
Congress Creates a Navy. Congress began to plan for aggressive action against British ships stocked with ammunition. It authorized the building of four armed ships, and began to formulate rules for a navy. On December 22, Congress named Esek Hopkins commodore of the fledgling American navy. Soon after, Congress authorized privateering, and issued rules for dealing with enemy vessels and plunder.
Congress Searches for Foreign Aid. When a congressional committee began to investigate the possibility of foreign aid in the war against Great Britain, France expressed interest.

1776
"Common Sense." Thomas Paine moved many to the cause of independence with his pamphlet titled "Common Sense." In a direct, simple style, he cried out against King George III and the monarchical form of government.
The British Evacuate Boston. American General Henry Knox arrived in Boston with cannons he had moved with great difficulty from Fort Ticonderoga, New York. Americans began to entrench themselves around Boston, planning to attack the British. British General William Howe planned an attack, but eventually retreated from Boston.
Congress Authorizes the Colonies to Write Constitutions. In May, the Second Continental Congress adopted a resolution authorizing the colonies to adopt new constitutions; the former colonial governments had dissolved with the outbreak of war.
Congress Declares Independence. When North Carolina and Virginia empowered their delegates to vote for American independence, Virginian Richard Henry Lee offered a resolution stating that the colonies "are, and of right ought to be, free and independent States." A committee was appointed to draft a declaration of independence, and Thomas Jefferson was chosen to write it. On July 2, Congress voted in favor of independence, and on July 4, the Declaration of Independence was approved. Copies were sent throughout the colonies to be read publicly.
Battle of Long Island. After leaving Boston, British General Howe planned to use New York as a base. The British captured Staten Island and began a military build-up on Long Island in preparation for an advance on Brooklyn. Washington succeeded in saving his army by secretly retreating onto Manhattan Island. Washington eventually retreated from Manhattan, fearing the prospect of being trapped on the island, and the British occupied New York City.
Congress Names Commissioners to Treat with Foreign Nations. Congress sent a delegation of three men to Europe -- Silas Deane, Benjamin Franklin, and Arthur Lee -- to prepare treaties of commerce and friendship, and to attempt to secure loans from foreign nations.
The Battle of White Plains. British and American forces met at White Plains, New York, where the British captured an important fortification. Washington once again retreated, still attempting to save his army from the full force of the British army.
Retreat through New Jersey. Washington and his army retreated across New Jersey, crossing the Delaware River into Pennsylvania. Congress, fearing a British attack on Philadelphia, fled to Baltimore.
Battle of Trenton. On December 26, Washington launched a surprise attack against a British fortification at Trenton, New Jersey, that was staffed by Hessian soldiers. After one hour of confused fighting, the Hessians surrendered. Only five American soldiers were killed.

1777
Battle of Princeton. British General Howe reacted to the Battle of Trenton by sending a large force of men to New Jersey. At Princeton, Washington once again launched a surprise attack, and succeeded in defeating the British. His efforts cleared most of New Jersey of enemy forces, and greatly boosted American morale.
America Has a Flag. On June 14, Congress declared that the flag of the United States would consist of thirteen alternating red and white stripes, and a blue field with thirteen white stars.
The British Attack Philadelphia. British and Americans met at Brandywine Creek, Pennsylvania. The Americans retreated, and the British soon occupied Philadelphia, forcing Congress once again to flee the city. After retreating further during the Battle of Germantown, Washington settled his army for the winter in Valley Forge -- a winter of extreme cold and great hunger.
Saratoga. On October 7, British and American troops engaged in New York. Fatigued from battle and short of supplies, British General John Burgoyne's troops were repulsed by American forces under General Horatio Gates. On October 8, Burgoyne retreated to Saratoga; by October 13th, he asked for terms of surrender. The "Convention of Saratoga" called for Burgoyne's army to be sent back to England, and for each soldier to pledge not to serve again in the war against the colonies.
The "Conway Cabal." Many in Congress were unhappy with Washington's leadership; some murmured the name of General Horatio Gates as a possible replacement. Thomas Conway, the army's inspector general, wrote a critical letter to Gates about Washington, leading many to believe there was an organized effort to replace Washington. Conway resigned from the army, and eventually apologized to Washington.
Articles of Confederation. When Richard Henry Lee made a motion for independence (1776), he also proposed a formal plan of union among the states. After a discussion lasting more than a year, the Articles of Confederation were adopted by Congress, although the states did not ratify the Articles until 1781.

1778
France and America Become Allies. France and America formed an alliance, negotiated by Benjamin Franklin, stating that each would consider the other a "most favored nation" for trade and friendship; France would be obligated to fight for American independence; and America would be obligated to stand by France if war should occur between France and Great Britain. Within four months, France and Great Britain were at war.
The British Attempt to Make Peace. Threatened by the alliance between France and America, Parliament proposed the repeal of the Tea Act (1773) and Coercive Acts (1774), pledged not to tax the colonies, and sent peace commissioners to America. However, most Americans were interested only in British recognition of American independence. When a British commissioner tried to bribe congressmen Joseph Reed, Robert Morris, and Francis Dana, Americans became even less interested in reconciliation. Competing for support from the American people, both Congress and the desperate commissioners appealed directly to them with broadsides, but the British commissioners soon returned to Great Britain, their mission a failure.
John Paul Jones Wins Victories. Although Esek Hopkins was never very successful with the American navy, Captain John Paul Jones won several victories against the British with his ship, the "Ranger."
The Battle of Monmouth. When the British headed for New York, Washington left Valley Forge to follow. At the Battle of Monmouth, American General Charles Lee gave several confused orders, and then ordered a sudden retreat. Washington's arrival on the scene saved the battle, although the British escaped to New York during the night. Lee was later court-martialed.

1779
The British Attack in North and South. Fighting continued in both the northern and southern states. In the frontier settlements of Pennsylvania, Loyalists and Indians led by Mohawk Joseph Brant attacked American settlers. The Loyalists soon were defeated, and Americans went on to destroy many Native American villages whose residents were fighting on the side of the British.
Spain Joins the War. Spain asked Britain for Gibraltar as a reward for joining the war on the British side. When Britain refused, Spain joined with France in its war against Britain, although refusing to recognize American independence.

1780
The British Take Charleston, South Carolina. After a brief fight, the British took Charleston, capturing 5,400 men and four American ships in the harbor. It was the worst American defeat of the war.
A Mutiny in the Continental Army. When the value of Continental currency sank to a new low, Congress had problems supplying the American army. Great shortages of food led to a short-lived mutiny among some Connecticut soldiers at Washington's camp in New Jersey.
The Treason of Benedict Arnold. American General Benedict Arnold, frustrated and ambitious, began dealing with British General Sir Henry Clinton. After he was promised the command at West Point by General Washington, Arnold told Clinton that he would give the strategic American fortification to the British. But when British Major John Andr‚, acting as messenger, was captured, Arnold fled to a British ship, revealing his involvement in the treasonous plan. Andr‚ was executed as a spy, and Arnold was made a brigadier general in the British army.

1781
Congress Creates a Department of Finance. American finances were in such dire straits that Congress saw the need for a separate department of finance. Robert Morris was appointed superintendent of finance.
The Articles of Confederation Are Ratified. With the ratification of the Articles of Confederation, under discussion since 1777, Congress assumed a new title, "The United States in Congress Assembled."
The Battle of Yorktown. French and American forces joined at Yorktown, on land and at sea, and attacked British fortifications. Key British points were soon held by the Americans and French, and British General Cornwallis soon surrendered, giving up almost 8,000 men. With this defeat, Britain lost hope of winning the war in America.

1782
Peace Negotiations Begin in Paris. British, French, and American commissioners met in Paris to discuss peace. The United States sent Benjamin Franklin, John Adams, and John Jay. By November, the commissioners had drafted a peace treaty. Its terms called for Great Britain to recognize American independence and provide for the evacuation of all British troops. Great Britain also gave up its territory between the Mississippi River and the Allegheny Mountains, doubling the size of the new nation.

1783
The Army Complains. When a delegation of army officers complained to Congress about their unpaid salaries and pensions, Congress had no quick solution. An anonymous letter urged officers to unite and attempt one last appeal to Congress. If its attempt was ignored, the army was prepared to revolt against Congress. Washington, addressing the army in person at its headquarters in Newburgh, New York, convinced them to be patient, and not to dishonor themselves after their glorious victory. Visibly moved, the officers adopted resolutions to present to Congress, and pledged not to threaten violence or rebellion.
Congress Ratifies the Preliminary Articles of Peace. After Spain, France, and Britain successfully came to terms, the treaty between France, Britain, and America was put into effect, and warfare formally ceased. Congress ratified the Articles of Peace on April 15.
The Loyalists and British Evacuate New York. New York City was the last Loyalist refuge in America. Starting in April, nearly 30,000 Loyalists, knowing that the British soon would leave New York, packed their belongings and sailed to Canada and England, followed shortly by the British army. In November, when the British sailed away, Washington entered the city and formally bade farewell to his officers. Soon after, he resigned his commission.
The American Army Disbands. In June, most of Washington's army disbanded and headed for home just before the British evacuated New York. A small force remained until all the British had departed.
Congress Is Threatened. A group of soldiers from Pennsylvania marched on Congress, demanding their pay. Armed and angry, they surrounded Independence Hall. The members of Congress eventually were allowed to leave the building; they fled to Princeton, New Jersey.